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post #1 of 9 (permalink) Old 10-07-2017, 04:38 PM Thread Starter
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wires.

Hey gang.
I just installed part # 71400129, fairing dash aux. switch kit. I am left with one ACC connector with two wires and 4 capped wires. I want to wire in a small fan. The fan has just two wires, red, and black. The capped wires are color coded but I got confused knowing which is which, except for black of course.
There is RedBlue, BlueYellow, Black and Lightblue.
The instructions say not to wire anything over 2A to the lightblueyellow wire. So, do I just run the Redblue as power and black as grnd. Or do I use the lightblueyellow for power.
I was looking at the color scheme on the schematics and...it did not help .
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post #2 of 9 (permalink) Old 10-07-2017, 05:02 PM
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First off, you need a wiring diagram for the switch assy. Then find out how much power you can pass thru the switches, and how much the fan draws. If the fan draws more than the switch is rated for you'll have to add a relay.
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post #3 of 9 (permalink) Old 10-08-2017, 07:36 PM Thread Starter
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Originally Posted by norm9278 View Post
First off, you need a wiring diagram for the switch assy. Then find out how much power you can pass thru the switches, and how much the fan draws. If the fan draws more than the switch is rated for you'll have to add a relay.
I have the diagram. I know how much ONE wire can draw..no more than 2 amps. I am looking for what each wire caries or does. The color on the harness does NOT match the switch assembly.

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post #4 of 9 (permalink) Old 10-08-2017, 08:42 PM
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If not sure of the wire color code to identify the 24 vdc polarity a volt meter can help if have one handy.


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post #5 of 9 (permalink) Old 10-08-2017, 09:00 PM
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Quote:
Originally Posted by pauld View Post
I have the diagram. I know how much ONE wire can draw..no more than 2 amps. I am looking for what each wire caries or does. The color on the harness does NOT match the switch assembly.
Those wires will carry much more than 2 amps. The warning is referencing the switch contacts, which will be the weak link. So you will need to wire in a relay. You will use whichever wire goes hot when the switch is on to energise the coil on the relay. Then run a fused B+ wire to the relay contacts, and the fan B+ to the normally open relay contact.
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post #6 of 9 (permalink) Old 10-08-2017, 10:05 PM
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Quote:
Originally Posted by pauld View Post
Hey gang.
I just installed part # 71400129, fairing dash aux. switch kit. I am left with one ACC connector with two wires and 4 capped wires. I want to wire in a small fan. The fan has just two wires, red, and black. The capped wires are color coded but I got confused knowing which is which, except for black of course.
There is RedBlue, BlueYellow, Black and Lightblue.
The instructions say not to wire anything over 2A to the lightblueyellow wire. So, do I just run the Redblue as power and black as grnd. Or do I use the lightblueyellow for power.
I was looking at the color scheme on the schematics and...it did not help .
The harness you have already has a relay wired into it. This single relay is is wired to the black female plug that has two wires going to it and is label in your instructions as the D connector. The wires in the D connector are rated at 325amps and are the wires you will need to use to run your fan. You can cut the plug off and splice the fan wires in that way, or you can buy the two wire male D plug from Harley to connect your fan wires to for a plug in connection.
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post #7 of 9 (permalink) Old 10-14-2017, 02:11 PM Thread Starter
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diagram

In the diagram, Connectors D and E are hooked up to corresponding connectors on the bike. I am them left with connector A, and B.
B has three wires. RedBlue, Black and Lightblue yellow. With 3 protruding wires to splice into my fan, and my fan having just two wires, power and ground, my question was what wire would cary the power to the fan. My fan is rated 1.8A.
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post #8 of 9 (permalink) Old 10-14-2017, 04:15 PM
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Originally Posted by pauld View Post
In the diagram, Connectors D and E are hooked up to corresponding connectors on the bike. I am them left with connector A, and B.
B has three wires. RedBlue, Black and Lightblue yellow. With 3 protruding wires to splice into my fan, and my fan having just two wires, power and ground, my question was what wire would cary the power to the fan. My fan is rated 1.8A.
I stand corrected. Plug A is power through the relay and connected to switch #1 (middle switch noted 5 in the diagram). Of the three capped wires noted as B, red/blue is wire up to the blank switch (far left switch pocket 6 in the diagram). This is useless until a switch is actually added to that pocket in the panel. The light blue/yellow is wired to the switch #2 (far right switch also note 5 in the diagram). This light blue/yellow wire can be used but is only capable of a maximum 2amp draw. If your fan is only pulling 1.8amps you should be good to use the light blue/yellow wire without a relay but I would double check that fan draw before hooking it up. And then of course the black wire is the ground wire and would be used in combination of ether red/blue or light blue/yellow. Hope this helps.
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post #9 of 9 (permalink) Old 10-14-2017, 06:48 PM Thread Starter
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Originally Posted by Smokey View Post
I stand corrected. Plug A is power through the relay and connected to switch #1 (middle switch noted 5 in the diagram). Of the three capped wires noted as B, red/blue is wire up to the blank switch (far left switch pocket 6 in the diagram). This is useless until a switch is actually added to that pocket in the panel. The light blue/yellow is wired to the switch #2 (far right switch also note 5 in the diagram). This light blue/yellow wire can be used but is only capable of a maximum 2amp draw. If your fan is only pulling 1.8amps you should be good to use the light blue/yellow wire without a relay but I would double check that fan draw before hooking it up. And then of course the black wire is the ground wire and would be used in combination of ether red/blue or light blue/yellow. Hope this helps.
Hooked up and workng...used blue/yellow wire

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